Pilots should be aware that where rain, hail, sleet or snow showers are encountered on the
approach or have been reported as having recently crossed the airfield, there is a high probability
of the runway being contaminated. The runway state should be checked with ATC before
commencing or continuing the approach. Very often a short delay is sufficient to allow the runway
to drain or the contaminant to melt. Use of reverse thrust on landing on dry snowin very low
temperatures will blow the dry snow forward especially at low speed. The increase in temperature
may melt this snow and form clear ice on re-freezing on static ports.